• 제목/요약/키워드: carotene

검색결과 803건 처리시간 0.025초

젖소의 혈장 베타카로틴 농도 조사 (Study of plasma β-carotene concentration in dairy cows)

  • 남향미;문진산;주이석;오태호;박용호;한홍율
    • 대한수의학회지
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    • 제39권5호
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    • pp.1021-1027
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    • 1999
  • This study was carried out to determine the effects of ${\beta}-carotene$ on the control of mastitis in dairy cows during the dry period. The relationship between the levels of plasma ${\beta}-carotene$ and the status of udder health in Holstein dairy cows were investigated. Blood samples were collected from 117 cows to compare the levels of plasma ${\beta}-carotene$ in lactating cows. The levels of plasma ${\beta}-carotene$ were $1.82{\mu}g/ml$ in healthy cows(n = 65) and $1.12{\mu}g/ml$ in mastitic cows(n = 52), respectively(p < 0.01). In the experiment to compare the level of plasma ${\beta}-carotene$ in the cows at different stages of lactation, the plasma ${\beta}-carotene$ levels were $1.73{\mu}g/ml$ in lactating cows(n = 22), $1.29{\mu}g/ml$ in nonlactating cows(n = 35) and $0.43{\mu}g/ml$ in cows after calving(n = 16)(p < 0.05).

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가열처리 및 저장조건에 따른 당근과 시금치퓨레의 Carotenoids 함량변화와 이성질화 형성에 관한 연구 (Changes in Carotenoids Contents in Pureed and Cooked Carrot and Spinach during Storage)

  • 김혜영;임양이
    • 한국식품조리과학회지
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    • 제19권1호
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    • pp.83-95
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    • 2003
  • Investigations were conducted on the changes in carotenoids content, and quantification of cis-trans-${\beta}$-carotene Isomers in pureed and cooked carrot and spinach during storage. The isomerization and degradation of carotenoids were monitored by high-performance liquid chromatography on a C$\_$30/ reversed-phase column with diode-array detection. The results showed that lutein, ail-trans-${\beta}$-carotene, ${\alpha}$-carotene, 9-cis-${\beta}$-carotene and 13-cis-${\beta}$-carotene were present in carrot and spinach. Zeaxanthin and cryptoxanthin were present in raw spinach. The contents of lutein, zeaxanthin, cryptoxanthin, ${\alpha}$-carotene and all-trans-${\beta}$-carotene in pureed and cooked carrot and spinach decreased with increasing storage period. The 9-cis and 13-cis carotenoid isomers were the major types formed in cooked carrot during storage. Cooking was not found to alter the carotenoid profile of the sample, but increased the total amount of carotenoids compared with pured ones. This increase could be explained that cooking itself increased the extraction efficiency and inactivated the enzymes degradating carotenoids.

에탄올 섭취가 $\beta$-Carotene을 급여한 흰쥐의 성장 및 비타민 A 상태에 미치는 영향 (Effect of Ethanol Consumption on Growth and Vitamin A Status in Rats Fed $\beta$-Carotene Supplemented Diets)

  • 서정숙;임화자
    • 한국식품영양과학회지
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    • 제27권4호
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    • pp.731-738
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    • 1998
  • The present study was aimed to investigate the effect of dietary supplementation of $\beta$-carotene on vitamin A metabolism in ethanol-fed rats. Sprague-Dawley rats weighing 190~210g were fed a liquid diet containing 36% of total calories as ethanol for 6 weeks. The pair-fed control rats(1BP group, 2BP group) were given an isocaloric amount of diet containing sucrose instead of ethanol on the following day. Additionally, the liquid diet, contained different levels of $\beta$-carotene(1BE group: 2.1, 2BE group: 21mg/L liquid diet). Body weight gains and food efficiency ratios of ethanol groups were lower than those of pair-fed groups. This effect did not change with dietary supplementation of $\beta$-carotene. The levels of plasma and hepatic retionl were decreased after chronic ethanol feeding, but the values in 2BE group were higher than in 1BE group. The content of hepatic retinoic acid tended to increase in proportion to $\beta$-carotene supplementation. There results suggest that ethanol consumption may affect the vatamin A methabolism and reduce the conversion of $\beta$-carotene to retinol in rats.

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In vivo Supravital Staining Micronucleus Test에 의한 $\beta$-Carotene과 Galangin의 소핵생성억제효과 (Anticlastogenicity of $\beta$-Carotene and Galangin using in vivo Supravital Staining Micronucleus Test)

  • 허문영;김정한;류재천
    • 한국환경성돌연변이발암원학회지
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    • 제17권2호
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    • pp.92-96
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    • 1997
  • The micronucleus test using peripheral blood reticulocytes (RETs) was evaluated in ICR mice treated with N-methyI-N-nitrosourea (MNU) and benzo(a)pyrene [B(a)P] as model clastogens. The frequency of micronucleated reticulocytes (MNRETs) in both positive compounds was similar to other results which were reported previously. On the other hand, an anticlastogenic effect of the natural antioxidant, $\beta$-carotene and one of taroholds, galangin as model anticlastogens were investigated using simultaneous treatment. Mice were treated with a model clastogen alone, or with a model clastogen and a model anficlastogen simultaneously. Both $\beta$-carotene and galangin showed anticlastogenic effects against MNU- or B(a)P-induced micronuclei in mice. However, galangin has stronger activity than $\beta$-carotene. Results from our experiment suggest that the in vivo supravital staining micronucleus test using peripheral blood is useful in the evaluation of clastogenic and anticlastogenic effects.

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조리방법에 따른 호박 중의 클로로필과 카로틴 함량 변화 (Changes of Chlorophyll and Carotene Contents of Pumpkins with Cooking Method)

  • 김동석;;김미향
    • 동아시아식생활학회지
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    • 제14권6호
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    • pp.618-624
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    • 2004
  • This study was performed to investigate changes of chlorophyll and carotene contents by cooking methods and parts of pumpkin(zucchini, green pumpkin, and sweet pumpkin). The hightest chlorophyll content of 3-parts(peel, cortex, and seed), all of pumpkin was peel part for chlorophyll contents by cooking methods of all kinds of pumpkin. It was the highest when cooked by non-batter frying. Carotene was relativity stable with cooking. But in case of sweet pumpkin, steaming cooking method was reduced carotene contents. β-carotene of zucchini, green pumpkin, and sweet pumpkin was higher than standard contents.

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베타-카로틴의 면역생물학적 연구 (Immunobiological Studies on Beta-Carotene)

  • 안영근;구자돈;김정훈;김봉희;조필형;구교임
    • 약학회지
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    • 제36권5호
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    • pp.412-426
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    • 1992
  • Effects of beta-carotene on the immunobiological responses were studied in ICR mice. ICR male mice were divided into 8 groups (10 mice/group), and beta-carotene at doses of 4, 20 and 100 mg/kg were orally administered to ICR mice once daily for 28 consecutive days. Cyclophosphamide (CY) was injected intraperitoneally (i.p.) to ICR mice with a single dose of 5 mg/kg body weight at 2 days before secondary immunization. Mice were sensitized and challenged with sheep red blood cells (5-RBC). Immune responses were evaluated by humoral immunity, cellular immunity and non-specific immunity. The results of this study were summarized as follows: (1) Beta-carotene significantly increased the weight ratios of liver, spleen and thymus to body weight depending on dose, and significantly increased the increasing rate of body weight and the number of circulating leukocyte. (2) Beta-carotene dose-dependently increased hemagglutination titer, Arthus reaction and hemolytic plaque forming cell related to humoral immunity. (3) Beta-carotene significantly increased delayed-type hypersensitivity reaction and rosette forming cell related to cellular immunity. (4) Beta-carotene dose-dependently increased phagocytic activity, and significantly increased natural killer (NK) cell activity. (5) Beta-carotene dose-dependently inhibited reductions in humoral immunity, cellular immunity, NK cell activity and phagocytic activity by treatment with CY.

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녹색잎 채소류의 ${\beta}$-Carotene과 Lutein 함량 (Beta-carotene and Lutein Contents in Green Leafy Vegetables)

  • 이화숙;김영남
    • 동아시아식생활학회지
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    • 제7권2호
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    • pp.175-180
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    • 1997
  • Beta-carotene and lutein contents in 7 different green leafy vegetables(perilla leaf, mugwort, chwi, lettuce, spinach, leek, and crown daisy) were analyzed by HPLC. The isocratic separation was performed on a ${\mu}-Bondapak$ $C_{18}$ column with a solvent system of acetonitrile : dichloromethane : methanol = 70:20:10. To check the reliability of the method applied, precision and recovery tests were performed. Perilla leaf showed the highest ${\beta}-carotene$ content(12,570 ${\mu}g$ / 100 g), followed by mugwort and chwi, all of those have ${\le}10,000\{\mu}g\{\beta}-carotene$ per 100 g vegetables. Green lettuce, spinach, leek, crown daisy and reddish brown lettuce contained 9,869, 6,689, 5,664, 3,601 and 3,299 ${\mu}g\{\beta}-carotene/100 g$, respectively, Lutein content was the highest in perilla leaf($13,718{\mu}g/100 g$) followed by chwi($11,989{\mu}g/100 g$), mugwort($11,522{\mu}g/100 g$), green lettuce($10,307{\mu}g/100 g$) and spinach($10,115{\mu}g/100 g$). ${\beta}-carotene$ contents in perilla leaf, mugwort, chwi and green lettuce were 47.8~49.6% of total carotenoids, and ${\beta}-carotene$ contents in the other green leafy vegetables analyzed were 37.7~41.4% Vitamin A contents of green leafy vegetables analyzed by HPLC were 2~6 times higher than the vitamin A values shown in food composition tables except crown daisy.

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흡연대학새의 비타민 A와 $\beta$-Carotene 섭취량 및 혈청 총 Carotenoids 수준과이 관계 (Relation between Vitamin A and $\beta$-Carotene Intakes and Serum Total Carotenoids Levels in Smoking College Students)

  • 강명희;박정아
    • 한국식품영양과학회지
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    • 제28권2호
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    • pp.492-500
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    • 1999
  • The aim of this study was to assess the association between total vitamin A, retinol and carotene intakes and serum concentration of total carotenoids in Korean male smokers and nonsmokers. Food frequency and nutrient intakes of 64 healthy college students were estimated by the 24 hour recall method and food frequency questionnaire and analyzed by smoking status. Serum total cartenoids and lipid profiles were measured in 28 smokers and 36 nonsmokers. The mean total vitamin A, retinol and carotene intakes of smokers were not significantly different from nonsmokers. However, carotene intakes of the smokers who have smoked more than 5 packyears were significantly lower than those of nonsmokers. Smokers consumed green yellow leafy vegetables more often(P=0.005) and fresh fruits less often(P=0.017) than nonsmokers. The serum total carotenoids of smokers consuming the same amount of retinol and carotene as nonsmokers, 1.79 g/ml, were 17% lower than nonsmokers, 2.15 g/ml(P<0.05). The lipid profiles including total cholesterol, LDL cholesterol, VLDL cholesterol and triglycerides of smokers were not significantly different from nonsmokers, however, the concentration of HDL cholesterol of smokers were significantly higher than that of nonsmokers. The serum carotenoids concentration was positively associated with fruit consumption frequency in smokers, and also was positively associated with green yellow leafy vegetable consumption frequency in non smokers. There were no correlations between dietary and serum carotenoids for smokers as well as nonsmokers. It was concluded that smoking could be inversely related to the serum concentration of carotenoids at constant carotene intakes and smokers might require more carotene to reach the same concentration comparable to nonsmokers.

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나노에멀션 내의 베타카로텐 분해에 미치는 산화방지제의 영향 (Influence of antioxidants on β-carotene degradation in nanoemulsions)

  • 박준규;권윤중
    • 한국식품과학회지
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    • 제50권3호
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    • pp.324-330
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    • 2018
  • 본 연구에서는 서로 다른 성질을 지닌 기름(MO, CO, PO)을 선정한 후 산화방지제(아스코브산, 토코페롤)의 종류와 농도를 달리한 베타카로텐 함유 나노에멀션을 제조하여, 산화안정성을 검토하였다. 베타카로텐 나노에멀션은 낮은 pH에 비하여 높은 pH에서 화학적으로 더 안정하였다. 또한 베타카로텐의 산화는 기름의 특성에 많은 영향을 받았으며, 지방산 사슬길이가 길며 포화 지방산 함량이 낮은 CO를 유상(oil phase)으로 사용할 경우 베타카로텐 산화를 더욱 가속화시키는 것으로 나타났다. 에멀션 내의 베타카로텐의 분해는 아스코브산과 토코페롤 산화방지제를 첨가함으로써 지연시킬 수 있었다. 그러나 베타카로텐을 함유한 산성 상태의 음료와 식품을 제조하고 이를 장기간 보존하기 위해서는 높은 농도의 산화방지제 첨가가 요구됨을 확인하였다.

카로텐 공급이 정상식이 여성과 채식주의 여성의 혈청 카로텐 및 레티놀 수준에 미치는 영향 (Influence of Carotene Supplementation on Serum Carotene and Retinol Levels in Lactoovovegetarian and Nonvegetarian Women)

  • 김혜영
    • Journal of Nutrition and Health
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    • 제22권4호
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    • pp.257-265
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    • 1989
  • 건강한 정상식이 여성과 낙농제품을 섭취하는 채식주의 여성을 대상으로 당근쥬스를 이용한 알파와 베타 카로텐의 공급이 혈청 알파와 베타 카로텐, 총 카로테노이드 및 레티놀 수준에 미치는 영향을 연구하였다. 두 주간의 실험기간동안 3일간의 식이기록과 비타민 A 섭취에 대한 기록을 하였으며, 실험기간동안 카로텐함량이 많은 식품의 섭취를 제한하였다. 그 결과, 당근쥬스 공급은 정상식이 여성의 혈청 알파와 베타 카로텐 및 총 카로테노이드 농도를 유의성 있게 상승시켰으며, 채식주의자에게선 알파와 베타 카로텐 농도만이 증가되었다. 식이 알파와 베타 카로텐의 영향은 채식주의 여성에서 보다 정상식이 여성의 혈청에 더 큰 영향을 주었다. 카로텐 섭취량을 감소시킨 결과, 상승된 혈청 카로텐 수준에 있어 정상식이 여성이나 채식주의 여성사이에 차이가 없었다. 혈청 레티놀 농도는 카로텐 공급에 영향 받지 않았으며, 실험 기간동안 일정수준을 유지하였다. 이상의 결과로 혈청 총카로테노이드 수준은 알파와 베타 카로텐 같은 각각의 카로텐의 혈철 지표가 될 수 없으며, 알파와 베타 카로텐의 경우, 식습관에 관계없이 식이 카로텐이 혈청 카로텐 수준에 반영됨을 시시해준다.

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